Correlation between magnon and magnetic symmetries of hexagonal RMnO3 (R = Er, Ho, Lu)

Thi Minh Hien Nguyen, Thi Huyen Nguyen, Xiang Bai Chen, Yeonju Park, Young Mee Jung, D. Lee, T. W. Noh, Sang Wook Cheong, In Sang Yang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The correlation between the magnon scattering and the magnetic symmetries of hexagonal RMnO3 (R = Er, Ho) thin films and LuMnO3 single crystal was studied through the 2D Correlation Spectroscopy (2D COS) and Perturbation-Correlation Moving Window 2D (PCMW2D) Correlation Spectroscopy which were performed on the temperature-dependent Raman spectra of RMnO3 (R = Er, Ho, Lu). From the Raman spectra, we observed much stronger intensity and more asymmetrical magnon peak in LuMnO3 single crystal than in ErMnO3 and HoMnO3 thin films. While the ratio between magnon and phonon's linewidth of LuMnO3 and HoMnO3 display an anomalous behavior, that ratio of ErMnO3 is almost stable. The result from PCMW2D also supports these results. In addition, our 2D COS analysis showed that there are more overlap peaks in broad four-spin flipping magnon peak in LuMnO3 than that in ErMnO3 and HoMnO3. The differences of hexagonal RMnO3 (R = Er, Ho, Lu) in magnon scattering are very similar to the actual differences of the magnetic symmetries of these compounds. Therefore, we suggest that the magnon scattering of hexagonal RMnO3 is strongly correlated with the magnetic symmetries of these materials.

Original languageEnglish
Pages (from-to)103-109
Number of pages7
JournalJournal of Molecular Structure
StatePublished - 15 Nov 2016

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.


  • 2D correlation spectroscopy
  • Hexagonal manganite RMnO
  • Magnetic symmetries
  • Magnon scattering
  • Raman spectroscopy


Dive into the research topics of 'Correlation between magnon and magnetic symmetries of hexagonal RMnO3 (R = Er, Ho, Lu)'. Together they form a unique fingerprint.

Cite this